PD720 FCOG6100 Product Guide.sdr

FCOG6100
Features:
Industry Standard
ASIC-Based Design
Fully Connectorized
Independently
Configurable
Soft-Start and
Soft-Stop
Isolated Gate Drive
Circuitry
Phase Loss and
Power-On Reset
Protection
Applications:
Plating Rectifiers
Battery Chargers
Wind Turbine
Controllers
DC Drives
Semiconverters
UPS Systems
Transformer
Primary
Controllers
FCOG6100 Standard Three-Phase SixSCR Firing Board
Description
The FCOG6100 provides economical and
reliable phase-angle control of SCR AC
controllers and DC converters operated
from three-phase mains. The board
features six isolated gate drives,
independently configurable soft start/soft
stop control inputs, and an analog delay
angle command input configurable for a
variety of common voltage or current
ranges. A variety of current and voltage
regulator boards are available in addition
to auxiliary firing boards for remote or
parallel SCR arrangements.
Operational Features
Analog Delay Angle Command Signal
(SIG HI): Users may choose a variety of
DC control signal ranges including 0-5 V,
0-10 V, 4-20 mA, or custom ranges.
Power-On Reset: A special circuit
prevents unintentional SCR gating upon
board power-up.
Soft-Start and Soft-Stop: Upon soft-start,
SCR firing is enabled and the delay angle
command ramps from the maximum value
to the setpoint value determined by the
SIG HI command signal. Upon soft-stop,
the delay angle ramps from the setpoint
value to the maximum value after which
SCR firing is inhibited.
Phase Loss Inhibit: A phase loss circuit
instantly inhibits SCR firing if a loss of one
or more phases or gross phase imbalance
is sensed on the AC line. Firing will
soft-start when such a fault is cleared.
Instant Enable and Inhibit: A contact
closure (relay, switch, transistor) instantly
enables or inhibits SCR firing at the delay
angle commanded by the SIG HI delay
angle command signal.
Phase Sequence Insensitivity: SCR gating
is unaffected by mains voltage phase
sequence.
Enhanced Frequency Insensitivity: A new
compensation circuit reduces delay angle
variance with respect to frequency. The
gate drive angle decreases approximately
5° for a frequency change from 60 to 50
Hz, whereas the delay angle of previous
configurations decreased 12.5° over the
same frequency range.
High Current Picket Fence Gate Drive: The
transformer-isolated gate drive circuits
provide a hard firing initial 15 V open
circuit/1.8 A short circuit firing pulse
followed by sustaining "back porch" pulses
at 7 V open circuit/0.5 A short circuit. The
gate pulse burst frequency is 384 times the
mains voltage frequency.
Analog Delay Determinator Circuit:
Enerpro's gate delay determinator circuit is
based on the Ainsworth three-phase PLL
circuit and implemented with a proprietary
ASIC. This circuit adjusts the gate delay
firing angle in negative proportion to the
SIG HI command. Gate drive phase
balance is typically less than ±1°
Flexible Control Power Options: The
FCOG6100 may be powered from an
external 30 VDC or 24 VAC source. With
the addition of an onboard transformer, the
board may be powered from a 120 V, 240
V, 380 V, or 480 V external source. Board
power may also be obtained directly from
the connections to the SCR cathodes.
Board Construction: All circuit boards
are assembled at the Enerpro plant in
Goleta, California and are manufactured by
a UL-approved fabricator from 2.4 mm thick
FR4 fire resistant fiberglass epoxy
laminate. All boards are conformal coated
(MIL-1-46058, Type UR).
Enerpro applications engineers are
available by e-mail or fax for applications
assistance.
®
PD720 REV 01-2011
2011 Enerpro, Inc
Power Electronics Control Specialists
www.enerpro-inc.com

FCOG6100
Product Datasheet
Maximum Ratings
AC mains voltage
600 Vac
Pulse transformer hipot
3500 Vac (60 seconds)
Operating temperature range
-5 C to 85 C
Board ac supply voltage
28 Vac (24 Vac nominal)
12 V regulator output current 20 mA (Note 1)
5 V reference output current 5 mA (Note 1)
Auxiliary control power available from 30 V 10 W
output
Delay angle range 10° 170°
Characteristics
Delay angle command signal
(SIG HI)
Delay angle reference phase shift
Control signal isolation from ground
Gate delay steady-state transfer function
Gate delay dynamic transfer function
bandwidth
Gate drive phase balance
Delay angle variance
Lock acquisition time
Soft-start/stop time
Phase rotation effect
Phase loss inhibit
Power-on inhibit
Instant/soft inhibit/enable inputs
SCR gate pulse waveform
0-5, 0.85-5.85, 0-10, 1-2 V
4-20 mA
Or as specified
0 or -30° (application-specific)
653 k
Delay angle inversely proportional
to delay angle command SIG HI
-3 dB at 119 Hz, phase shift -45° at
68 Hz
±1° (max)
( )/ (f) = 0.2°/Hz
30 ms (typ)
0.05 - 20.0 s, independently
configurable
None
Automatic
Automatic
Dry contact
120° burst or
2-30° bursts, 30° spaced
Gate pulse burst frequency
384 times line frequency
Initial gate pulse open circuit voltage 15 V (Note 1)
Sustaining gate pulse open circuit voltage 7.0 V (Note 1)
Initial gate drive short circuit current 2.0 A (Note 1 and 2)
Sustaining gate drive short circuit current 0.5 A (Note 1 and 2
Short-circuit gate drive current rise time 1.0 A/ s (Note 1 and 2)
Board dimensions 191 x 152 x 35 mm (L x W x D)
Minimum creepage distance to ac mains
With onboard phase references
With phase references entering on J5
Conformal Coating
NOTES
1 Assumes nominal 30 V control power
2 Assumes a purely resistive gate load of 1.0
13 mm
5.0 mm
per MIL-1-46058, Type UR
Ordering Guide
Parameter Description Code
SCR Circuit
Type
Parallel
SCRs
Mains
Frequency
Command
Signal
Used with
Regulator
Board
SCR Mains
Voltage
On-Board
Transformer
Primary
Voltage
(Note 4)
On-Board
Transformer
Power
Phase
References
Converters
01 Six-SCR
02 Parallel SCR
Controllers
03 Two-quadrant,
Parallel SCR
04 Two-quadrant, Six- SCR
0 No
1 Yes (Note 1)
5/6 50/60 Hz
XX Specify (Note 2)
1 0 - 5 V
2 0.85 - 5.85 V
3 0 - 10 V
4 1 - 2 V
5 4 - 20 mA
6 Other - Specify
0 No
1 Horizontal Header
2 Vertical Header
XX Specify (Note 3)
0 Omit Transformer
1 120-240 Vac
2 240-480 Vac
3 350 Vac
4 380 Vac
0 Not Installed
1 External Source
2 SCR Cathodes
1 On-board
2 External (Note 5)
Notes
1 Auxiliary firing board required for parallel SCRs
2 Specify code as mains frequency divided by 10.
Example: 400 Hz / 10 = 40
3 Specify code as mains voltage divided by 10.
Example: 480 V / 10 = 48
4 Customer must supply 24 Vac or 30 VDC for
board control power
Enerpro, Inc.
5780 Thornwood Drive
Goleta, CA 93117 (USA)
Tel: (805) 683-2114
(800) 576-2114
Fax: (805) 964-0798
info@enerpro-inc.com
www.enerpro-inc.com
®
PD720 REV 01-2011
2011 Enerpro, Inc